//定制请求的实例

//导入axios  npm install axios
import axios from 'axios';
import { ElMessage } from 'element-plus';   

//定义一个变量,记录公共的前缀  ,  baseURL
//const baseURL = 'http://localhost:8080';
const baseURL = '/api';
const instance = axios.create({baseURL})

import { useTokenStore } from '@/stores/token.js';
instance.interceptors.request.use(
    (config)=>{

        const tokenStore = useTokenStore();
        if(tokenStore.token){
            config.headers.Authorization = tokenStore.token;
        }
        return config;
    },
    (err)=>{
       Promise.reject(err);
    }
       
)

import router from '@/router';

// import { useRouter } from 'vue-router';
// const router = useRouter();
//添加响应拦截器
instance.interceptors.response.use(
    result=>{
        if(result.data.code===0){
            return result.data;
        }


        // alert(result.data.message?result.data.message:'服务异常');
        ElMessage.error(result.data.message?result.data.message:'服务异常');

        return Promise.reject(result.data);
    },
    err=>{
        if(err.response.status===401){
            ElMessage.error('请先登录');
            router.push('/login');
            return;
        }
        else{
            ElMessage.error('服务异常');
        }
     
        return Promise.reject(err);//异步的状态转化成失败的状态
    }
)

export default instance;